[bit]

Hi guys,

Thanks so much for the responses. I spent about 5 hours tinkering about and after basically testing everything I could and tracing wires and whatever, I removed the lambda controller from under the passenger seat and opened it up. I traced the voltage coming in on pins 8 and 15 on the main circuit board. Very quickly, and found that ONE solder connection on the main power transistor was bad (cold). I resoldered the connector (and soldered in a jumper wire so it won't happen again) and right away, my frequency valve started making the wonderful music is used to make. Car is running so strong again, I had to lean my settings out and left the O2 sensor disconnected. It's amzing the power loss with the Lambda subsystem shuts down. And really there is no way to bypass it, unless you get a 78-79 fuel distributor which doesn't need or use lambda, so I'm told.

Another funny observation is the more I tried to fix the frequency valve problem, the more I questioned whether there was any sound coming from it before or not. Once I heard it again, I knew right away that it was fixed.

Take care,

.Steven
1980 911SC